Sofa



FIG. 1 is a front view of a sofa showing our new design;

FIG. 2 is a side view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a perspective view thereof;

FIG. 7 is a front view showing the sofa of FIG. 1 in an alternate position with the backrest extended;

FIG. 8 is a side view of FIG. 7;

FIG. 9 is a top plan view of FIG. 7;

FIG. 10 is a rear view of FIG. 7;

FIG. 11 is a bottom plan view of FIG. 7; and,

FIG. 12 is a perspective view of FIG. 7. 

The ornamental design for a sofa, as shown and described. 